failing test to prove the re-rendered element issue

bUnit-dev · Nov 13, 2023 · 2a282ca · 2a282ca
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diff --git a/tests/bunit.testassets/BlazorE2E/LabelQueryComponent.razor b/tests/bunit.testassets/BlazorE2E/LabelQueryComponent.razor
@@ -33,6 +33,11 @@
 	@((MarkupString) $"""<{htmlElement} aria-labelledby="{htmlElement}-with-aria-labelledby"></{htmlElement}>""")
 }
 
+@* Testing we get back the re-rendered element *@
+<label for="re-rendered-element">Re-rendered Element</label>
+<input id="re-rendered-element" @bind="@_count" />
+<button id="increment-button" @onclick="IncrementCount">Click</button>
+
 @code {
 	readonly List<string> htmlElementsThatCanHaveALabel = new()
 	{
@@ -44,4 +49,7 @@
 		"output",
 		"progress",
 	};
+
+	private int _count;
+	public void IncrementCount() => _count++;
 }
diff --git a/tests/bunit.web.query.tests/Labels/LabelQueryExtensionsTests.cs b/tests/bunit.web.query.tests/Labels/LabelQueryExtensionsTests.cs
@@ -85,4 +85,16 @@ public void Test006(string htmlElementWithLabel)
 		input.NodeName.ShouldBe(htmlElementWithLabel, StringCompareShould.IgnoreCase);
 		input.GetAttribute("aria-labelledby").ShouldBe($"{htmlElementWithLabel}-with-aria-labelledby");
 	}
+
+	[Fact(DisplayName = "Should reflect latest value when component re-renders")]
+	public void Test007()
+	{
+		var cut = RenderComponent<LabelQueryComponent>();
+
+		var input = cut.FindByLabelText("Re-rendered Element");
+		input.GetAttribute("value").ShouldBe("0");
+
+		cut.Find("#increment-button").Click();
+		input.GetAttribute("value").ShouldBe("1");
+	}
 }